Section 51617 Of Article 1. Delinquency Sales On Unbonded Assessments From California Water Code >> Division 15. >> Part 7. >> Chapter 4. >> Article 1.

. No sale, certificate of sale, or deed made for a valid delinquent assessment shall be adjudged invalid, unless the amount of the delinquent assessment, penalties, interest and costs has been refunded to the purchaser of the parcel.